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Cummins  |  SKU: 4921746

4921746 | Genuine Cummins® Exhaust Gas Pressure Sensor

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Description:
An Exhaust Gas Pressure (EGP) Sensor 4921746 is a device used in diesel engines to monitor the pressure of exhaust gases in the exhaust system, usually before and/or after the Diesel Particulate Filter (DPF). It provides critical information to the engine’s control system (ECM/ECU) to optimize engine performance and emissions control.

Part Number: 4921746
Condition: New
Manufacture/Brand: Cummins

Fits 4921746 For Hyundai Forklift:110D-7A, 130D-7A, 160D-7A, 110D-9, 130D-9, 160D-9, 250D-9, 35D-9, 40D-9, 45D-9, 50DA-9, 50D-9, 60D-9, 70D-9, 80D-9
Hyundai Wheel Loader:HL730-9A, HL730TM-9A, HL740-9A, HL740TM-9A, HL757-9A, HL757TM-9A, HL760-9A, HL770-9A, HL780-9A, HL940, HL940TM, HL955, HL955TM, HL960
Hyundai Excavator:
HW140, HW210, HX220, L, HX220, NL, HX235, LCR, HX260, L, HX300, L, HX330, L, HX380, L, HX430L, R140W-9A, R160W-9A, R180W-9A, R210W-9A, R210W9AMH, R220LC-9A, R220NLC-9A, R235LCR-9A, R260LC-9A, R300LC-9A, R330LC-9A, R380LC-9A, R430LC-9A, R480LC-9A, R520LC-9A
Engines: ISX, ISM, ISC, ISB, 15N CM2380 M104B, 15N CM2380 M105B, 6.7N CM2380 D109B, 6B5.9, B3.3, B4.0 CM2620 B154B, B4.5 CM2350 B129B, B4.5 CM2350 B146C, B4.5 CM2350 B147B, B4.5 CM2620 B158B, B4.5 CM2620 B180B, B5.9 GAS PLUS CM556, B6.7 CM2350 B121B, B6.7 CM2350 B135B, B6.7 CM2350 B136C, B6.7 CM2350 B148B, B6.7 CM2350 B157C, B6.7 CM2450 B155B, B6.7N CM2380 B150B, B6.7N CM2380 B183B, D4.0 CM2620 D103B, D4.5 CM2620 D104B, F2.8 CM2620 F135B, F2.8 CM2620 F136B, F3.8 CM2350 F120B, F3.8 CM2350 F128C, F3.8 CM2350 F132B, F3.8 CM2350 F133C, F3.8 CM2620 F137B, F3.8 CM2620 F144B, F3.8 CM2620 F149B, F4.5 CM2620 F139B, F4.5 CM2620 F146B, HSK78G CM2358 K129G, ISB (Chrysler), ISB CM2150, ISB CM2150 E, ISB CM850, ISB4.5 CM2350 B104, ISB5.9 CM2880 B149, ISB6.7 CM2250, ISB6.7 CM2350 B101, ISB6.7 CM2350 B103, ISB6.7 G CM2180 B118, ISBE4 CM850, ISC CM2150, ISC8.3 CM2250, ISF2.8 CM2220 ECCF2, ISF2.8 CM2220 F101, ISF2.8 CM2220 F117, ISF2.8 CM2220 F121, ISF2.8 CM2220 F122, ISF2.8 CM2220 F126, ISF3.8 CM2220 F103, ISF3.8 CM2350 F109, ISL CM2150, ISL CM554, ISL G CM2180, ISL9 CM2250, ISL9 CM2350 L101, ISL9 CM2350 L111, ISM CM570/870, ISM CM875, ISM CM876, ISM CM876 E, ISV (Nissan), ISV5.0 CM3230 V104, ISX CM870, ISX CM871, ISX CM871 E, ISX12 CM2350 X102, ISX12 G CM2180 EJ, ISX12/ISX11.9 CM2250, ISX12N CM2380 X120B, ISX15 CM2250, ISX15 CM2350 X101, L9 CM2350 L116B, L9 CM2350 L119B, L9 CM2350 L120C, L9 CM2350 L123B, L9 CM2350 L129C, L9 CM2350 L133C, L9 CM2450 L126B, L9N CM2380 L124B, L9N CM2380 L130B, L9N CM2380 L142B, QSB (Komatsu), QSB3.3 CM2150, QSB3.3 CM2250 EC, QSB4.5 CM2250 B131, QSB4.5 CM2250 EC, QSB4.5 CM2350 B106, QSB4.5 CM2350 B122, QSB4.5 CM2350 B174C, QSB6.7 CM2250, QSB6.7 CM2250 B128, QSB6.7 CM2250 EC, QSB6.7 CM2350 B105, QSB6.7 CM2350 B112, QSB6.7 CM2350 B130

Purpose of using 4921746:

 
  • Monitor Exhaust Pressure

    • Measures backpressure in the exhaust system.

    • Ensures the DPF isn’t clogged or restricting flow too much.

  • Control DPF Regeneration

    • Helps the ECM determine when the DPF needs cleaning (regeneration).

    • Prevents excessive soot buildup that could damage the filter.

  • Optimize Engine Performance

    • Prevents high backpressure that can reduce engine efficiency or power.

    • Helps maintain proper air-fuel ratio for combustion.

  • Emissions Compliance

    • Ensures that exhaust treatment systems function properly.

    • Helps reduce particulate matter and NOx emissions.


Signs of a Bad Exhaust Gas Pressure Sensor 4921746:

1. Check Engine Light / Diagnostic Codes

The ECM detects abnormal or no readings from the sensor.
Common codes include:
P2452 – Exhaust Gas Pressure Sensor Low
P2453 – Exhaust Gas Pressure Sensor High
P2454 – Exhaust Gas Pressure Sensor Intermittent/Incorrect

2. Reduced Engine Performance

Loss of power or hesitation under load.
Engine may struggle during acceleration due to improper exhaust flow management.

3. Diesel Particulate Filter (DPF) Issues

Frequent or failed DPF regeneration.
Clogged DPF due to the ECM misreading backpressure.
Warning lights related to the DPF may illuminate.

4. Increased Smoke or Emissions

Excessive black smoke from incomplete combustion.
Higher emissions due to incorrect fuel and air management.

5. Poor Fuel Economy

ECM may compensate for faulty readings by altering fuel injection, leading to increased fuel consumption.

6. Engine Limp Mode

Some engines may go into limp or reduced power mode to protect the DPF and engine from damage.

 

About the Manufacturer – Cummins:

Cummins is a leading American manufacturer of diesel and natural gas engines, as well as power generation systems and emissions solutions. Founded in 1919 and headquartered in Columbus, Indiana, Cummins is known globally for its durable, high-performance engines used in trucks, buses, construction equipment, agriculture, and power systems.

The brand is widely respected for its innovation in clean diesel technology, including aftertreatment systems, turbochargers, and advanced electronics that help reduce emissions while maximizing engine efficiency and reliability.

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